Tyres sidewalls 'wear' and blistering on both sides?

[r11co]

Abuse combined with under-inflation. Simples!

hora said:

They came off a written off Impreza.

Did you really have to ask?

[jamieduff1981]

Driven hard on a very poor/pot-holed road surface would be my starting point, probably with low pressure for extra grip innit?

[Snowboy]

Combination of age and abuse.

[Mr2Mike]

hora said:

Low pressures? That'd explain the 1.5inch fracturing tear (follows contour of radius). Why run low pressures though? It'd run like a shopping trolley into bends?

Because many people are so ignorant they can't actually tell the difference, and so lazy they don't bother checking them. I'm sure most of use have seen plenty of cars being driven with almost flat tyres? Don't bother trying to draw the drivers attention to it if it's a mum in an MPV though, you'll only get abuse back.

[Mr2Mike]

hora said:

Recently at traffic lights I motioned to another driver (two women, two small children in back) that their rear tyre was almost (edit) flat. Driver mouthed 'oh, thank you'....the lights changed and she turned off and headed up the slip road of the motorway.

I said to mrshora 'I'd follow her but I'm not putting my own child at risk for their stupidity'.

I've done the same and received the finger back for my trouble! A couple of years back I was in a friends car and spotted someone driving along a fairly empty motorway with bits of a completely wrecked and smoking rear tyre being randomly ejected over the road. We tried everything we could think of make the (female) driver driver aware of the problem but she refused to even acknowledge us, just sat rigidly in the seat staring ahead doing about 70. Eventually we got past her (giving her a very wide berth) and called the police.